NOTE: A and B Find the point of intersection of the diagonals of the parallelogram generated by OAand OB. (the three vertices of the parallelogram would be (0,0,0), (2,3, 6), and (1, -1, 7))

Question

NOTE: A<2, 3, 6> and B<1, -1, 7> Find the point of intersection of the diagonals of the parallelogram generated by OAand OB. (the three vertices of the parallelogram would be (0,0,0), (2,3, 6), and (1, -1, 7))

anonymous · Answer

That's in three dimensions?
The fourth vertex of the parallelogram C would be O + A-B = A-B, or (1,4,-1). 
So your diagonals would be the line segments OA and BC. You could then get the equations for those two lines, which should help you find their intersection point.

anonymous · Answer

yah its 3d

anonymous · Answer

I do not understand the meaning of OA and OB

anonymous · Answer

OA and OB are two edges of the parallelogram starting at point O and going to point A and B, respectively.
Basically, the two give you one half of the parallelogram - but since opposite sides are parallel, you can easily reconstruct the missing vertex (which is what I did above to get C). O is the origin, or (0,0,0).

anonymous · Answer

How is that a missing vertex when its given?

anonymous · Answer

nvm i see what you said with C give me a second

anonymous · Answer

ok well I dont know where to start

anonymous · Answer

No wait - that's wrong
hold on

anonymous · Answer

ok

anonymous · Answer

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